CN102574356B - Durable high performance adhesive-bonded allergen barrier laminates and process for making same - Google Patents
Durable high performance adhesive-bonded allergen barrier laminates and process for making same Download PDFInfo
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- CN102574356B CN102574356B CN201080045401.9A CN201080045401A CN102574356B CN 102574356 B CN102574356 B CN 102574356B CN 201080045401 A CN201080045401 A CN 201080045401A CN 102574356 B CN102574356 B CN 102574356B
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- Prior art keywords
- sensitinogen
- layer
- adhesive
- layered product
- resistant layer
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- 230000004888 barrier function Effects 0.000 title abstract description 11
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- 239000013566 allergen Substances 0.000 title abstract 4
- 239000000853 adhesive Substances 0.000 claims abstract description 149
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- 239000004744 fabric Substances 0.000 claims abstract description 116
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- 238000005406 washing Methods 0.000 claims abstract description 36
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- 239000000203 mixture Substances 0.000 claims description 10
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- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 3
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- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
- B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
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- B32B2250/00—Layers arrangement
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0292—Polyurethane fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
- Woven Fabrics (AREA)
- Bedding Items (AREA)
- Manufacturing Of Multi-Layer Textile Fabrics (AREA)
Abstract
A laminate useful as an allergen barrier structure, and process for making said laminate, comprising in order, a woven fabric layer having a thread count of 180 to 400; a nonwoven allergen barrier layer having a basis weight of from 6 to 10 g/m2 and consisting of fibers having average diameter of from 100 to 450 nanometers; and a tricot knit fabric layer; wherein the layers are attached by at least one adhesive distributed in discrete areas on the allergen barrier layer and penetrating into at least 70% of the thickness of that layer and also penetrating into but not through the woven and knit fabric layers. The laminate has a total basis weight of from 50 to 300 g/m2 and a filtration efficiency after 35 washings of 95 percent or greater for a 1 micrometer particle challenge of up to 1.6 liters per minute airflow.
Description
background of invention
2. background technology
The U.S. Patent Application Publication US2008/0120783 of the people such as Knoff discusses a kind of sensitinogen-resistant fabric and comprises the mattress of sensitinogen-resistant fabric, pillow, bedcover and lining separately.The open road of this patent disclosure, these sensitinogen-resistant fabrics can stand at least 10 washings, wash for 50 times even at the most and machinery separation or the layering of described various tissue layer does not occur; But by measured by filter efficiency, this patent disclosure is not mentioned this kind fabric and can how be stood washing many times routinely and still to keep them as the major function of barrier material.Because a lot of bed clothes goods all need to carry out routine washing, therefore in fact sensitinogen-resistant part needs to have mechanical endurance and strainability durability concurrently.
1. invention field
The present invention relates to the sensitinogen-resistant layered product being used as to wash covering, the described covering that washs is for comprising the bed clothes goods of such as pillowcase and bedcover and so on object.
summary of the invention
In one embodiment, the present invention relates to the layered product as sensitinogen-resistant structure, described layered product comprises successively:
A) woven fabric layer, it has the count of yarn of 180 to 400;
B) non-woven sensitinogen-resistant layer, it has the basic weight of 6 to 10 grams/m, and by fibrous, described fiber has the average diameter of 100 to 450 nanometers; With
C) tricot knit fabric layer;
Wherein said woven fabric layer is attached to sensitinogen-resistant layer by the first adhesive, in the zone of dispersion of described first adhesive distribution on the first side of sensitinogen-resistant layer, the adhesive of described zone of dispersion penetrates at least 70% of sensitinogen-resistant layer thickness, and described first adhesive also to penetrate in a surface of woven fabric layer but do not extend through described woven fabric layer from a surface to another surface; And wherein said tricot knit fabric layer is attached to sensitinogen-resistant layer by the second adhesive, in the zone of dispersion of described second adhesive distribution on the second side of sensitinogen-resistant layer, the adhesive of described zone of dispersion penetrates at least 70% of sensitinogen-resistant layer thickness, and the second adhesive also to penetrate in a surface of tricot knit fabric layer but do not extend through described knitted fabric layer from a surface to another surface.This layered product has total basic weight of 50 to 300 grams/m, and after 35 washings, measured by ASTM F2638-07, for 1 micron particles challenge of 1.6 liters/min of air-flows at the most, this layered product has the filter efficiency of 95% or larger.In some embodiments, the first adhesive and the second adhesive are identical adhesive, and described adhesive infiltrate sensitinogen-resistant layer and substantially continuously across described sensitinogen-resistant layer from a side to another side.
In one embodiment, the present invention also relates to the method for the preparation of the layered product being used as sensitinogen-resistant structure, it comprises the following steps:
A) the sensitinogen-resistant layer with the first side and second-phase dorsal surface and the first tissue layer for Woven fabric or knit goods are provided;
B) be administered in the zone of dispersion on the first side of sensitinogen-resistant layer by least one first adhesive, described at least one first adhesive is selected such that it infiltrates sensitinogen-resistant layer at least 70% of sensitinogen-resistant layer thickness from a side to another side;
C) the first tissue layer is applied to the first side of sensitinogen-resistant layer;
D) the first tissue layer and sensitinogen-resistant layer are consolidated into pre-laminate, at least one first adhesive of wherein said zone of dispersion to extend in a surface of the first tissue layer but through tissue layer from a surface to another surface;
E) provide steps d) pre-laminate and the second tissue layer, if the first tissue layer is Woven fabric, then the second tissue layer is knit goods, if or the first fabric be knit goods, then the second tissue layer is Woven fabric;
F) be applied in the zone of dispersion on the second-phase dorsal surface of sensitinogen-resistant layer by least one second adhesive identical or different with described at least one first adhesive, described at least one second adhesive is selected such that it infiltrates sensitinogen-resistant layer at least 70% of sensitinogen-resistant layer thickness from a side to another side;
G) the second tissue layer is applied on the second-phase dorsal surface of sensitinogen-resistant layer; And
H) the second tissue layer and pre-laminate are consolidated into layered product, at least one second adhesive of wherein said zone of dispersion to extend in a surface of the second tissue layer but through tissue layer from a surface to another surface.
The invention still further relates to the method for the preparation of the layered product being used as sensitinogen-resistant structure, it comprises the following steps:
A) woven fabric layer, sensitinogen-resistant layer and knitted fabric layer are provided;
B) be applied in by least one adhesive in the zone of dispersion on the first side of sensitinogen-resistant layer and the second opposing side, described adhesive is selected such that it infiltrates sensitinogen-resistant layer at least 70% of sensitinogen-resistant layer thickness from a side to another side;
C) knitted fabric layer is applied on the first side of sensitinogen-resistant layer, and woven fabric layer is applied on the second opposing side of sensitinogen-resistant layer; And
D) woven fabric layer, sensitinogen-resistant layer and knitted fabric layer are consolidated into layered product, the adhesive of wherein said zone of dispersion to extend in a surface of woven fabric layer and to extend in a surface of knitted fabric layer but through any one tissue layer from a surface to another surface.
accompanying drawing is sketched
Fig. 1 is the schematic diagram of the perspective view of layered product, is expressed as follows an embodiment: adhesive passes at least 70% of center sensitinogen-resistant layer from each surface penetration.
Fig. 2 is the schematic diagram of the adhesion situation being shown specifically Fig. 1.
Fig. 3 is the schematic diagram of the perspective view of layered product, is expressed as follows an embodiment: adhesive penetrates through central core always and links described two sides.
Fig. 4 is the schematic diagram of the adhesion situation being shown specifically Fig. 3.
Fig. 5 A and 5B shows a kind of possible method for the manufacture of sensitinogen-resistant layered product.
Fig. 6 shows the selective method for the manufacture of sensitinogen-resistant layered product.
detailed Description Of The Invention
The present invention relates to the layered product of the washed covering being used as bed clothes goods, this layered product has total basic weight of 50 to 300 grams/m and is sensitinogen-resistant structure, after 35 washings, measured by ASTM F2638-07, when use 1 micron particles challenge and 1.6 liters/min of air-flows are tested at the most time, it remains the filter efficiency of 95% or larger.This layered product comprises successively: woven fabric layer, and it has the count of yarn of 180 to 400; Non-woven sensitinogen-resistant layer, it has the basic weight of 6 to 10 grams/m and by fibrous, described fiber has the average diameter of 100 to 450 nanometers; And tricot knit fabric layer.It is believed that a reason of anaphylactogen performance and durability that this layered product has improvement is, the tricot knitted fabric be included in this layered product compensate for the contraction that Woven fabric occurs when each coherent washing, thus the local stress that help eliminates in layered product, described local stress can cause occurring between each layer to be separated or structure wrinkle.
Woven fabric layer is attached to sensitinogen-resistant layer by least the first adhesive, in the zone of dispersion of described first adhesive distribution on the first side of sensitinogen-resistant layer, wherein said first adhesive penetrates into the degree of depth at least 70% of sensitinogen-resistant layer thickness in sensitinogen-resistant layer.First adhesive also penetrates in a surface of woven fabric layer, but does not extend through tissue layer from a surface to another surface.Similarly, knitted fabric layer is attached to sensitinogen-resistant layer by least the second adhesive that can be identical or different with the first adhesive, in the zone of dispersion of described second adhesive distribution on the second opposing side of sensitinogen-resistant layer, wherein said second adhesive penetrates into the degree of depth at least 70% of sensitinogen-resistant layer thickness in sensitinogen-resistant layer.Second adhesive also penetrates in a surface of knitted fabric layer, but does not extend through tissue layer from a surface to another surface.
Fig. 1 is the schematic diagram of the perspective view of an embodiment of layered product 10, described layered product has woven fabric layer 11, non-woven sensitinogen-resistant layer 12 and tricot knit fabric layer 13, these layers are all linked together by the adhesive of one group of zone of dispersion, and two in this type of region represent by 14.As shown in the figure, layer 11,12,13 and adhesive area 14 be not draw in proportion but in order to more clearly describe carry out drawing.Fig. 2 is the schematic diagram of the adhesive link situation being shown specifically Fig. 1.As shown in the figure, the adhesive (one of them represents by 14) of one group of zone of dispersion illustrates and respectively tricot knit fabric layer 13 and woven fabric layer 11 is attached to non-woven sensitinogen-resistant layer 12.If figure is by shown in 15, the adhesive of zone of dispersion penetrates into the degree of depth at least 70% of sensitinogen-resistant layer thickness in non-woven sensitinogen-resistant layer 12.In addition, the adhesive linking the zone of dispersion of tricot knit fabric layer 13 and woven fabric layer 11 respectively also to penetrate in a surface of each tissue layer but not to extend through tissue layer from a surface to another surface.In other words, the adhesive of zone of dispersion does not arrive the outer surface of layered product through whole woven fabric layer or tricot knitted layer.
In some embodiments, the layered product of Fig. 1 and Fig. 2 is prepared by the following method, described method applied adhesives in two steps, first adhesive is applied on a side of non-woven sensitinogen-resistant layer 12, then in a subsequent step the second adhesive is applied on another side.In this approach, there is following possibility: the adhesive of zone of dispersion may be administered in make they each other very near or come in contact, as shown in by two binder discrete regions 16; Or their in fact may be overlapping or partly overlapping, as shown in by two binder discrete regions 17, thus formed and a kind ofly substantially to connect from a side to the adhesive of another side continuously across sensitinogen-resistant layer 12.In this embodiment, " substantially continuously " refers to because binder discrete region is in the centre-exchange-meeting of sensitinogen-resistant layer, overlap or partly overlapping and adhesive connection that is that is formed.
Fig. 3 is the schematic diagram of the perspective view of another embodiment of layered product 30, described layered product has woven fabric layer 11, non-woven sensitinogen-resistant layer 12 and tricot knit fabric layer 13, these layers are all linked together by the zone of dispersion of one group of adhesive, and one in described adhesive area represents by 24.As shown in the figure, layer 11,12,13 and adhesive area 24 be not draw in proportion but in order to more clearly describe carry out drawing.Fig. 4 is the schematic diagram of the adhesive link situation being shown specifically Fig. 3.As shown in the figure, the zone of dispersion (one of them represents by 24) of one group of adhesive is illustrated and respectively tricot knit fabric layer 13 and woven fabric layer 11 is attached to non-woven sensitinogen-resistant layer 12.As shown in the figure, the adhesive of zone of dispersion continuously across sensitinogen-resistant layer from a side to another side, thus through the whole thickness of non-woven sensitinogen-resistant layer 12 from a side to another side.In addition, the adhesive that also show zone of dispersion to link respectively tricot knit fabric layer 13 and woven fabric layer 11 in the following way: to penetrate in a surface of each tissue layer but not extend through tissue layer from a surface to another surface.In other words, the adhesive of zone of dispersion does not arrive the outer surface of layered product through whole woven fabric layer or tricot knitted layer.
It is believed that adhesive should penetrate into the degree of depth at least 70% of sensitinogen-resistant layer thickness in non-woven sensitinogen-resistant layer, and in some embodiments, continuously or substantially continuously across the whole thickness of sensitinogen-resistant layer, after 35 washings, to make layered product have durability and strainability.
In some embodiments, the peel strength of described layered product is 0.5 pounds per inch or larger.It is believed that this guarantees that layered product adheres to each other fully, and instruction stands enough washings and the mechanical endurance of 35 washing/drying circulations.Find that peel strength is that the layered product of 0.3lbs/in or less has large-scale layering during washing.After repeatedly washing, peel strength is greater than 0.3lbs/in but the layered product being less than 0.5lbs/in is tending towards having the not too large layering of scale, but really shows the sign of texturizing surfaces, the layering of the small-scale or local of described sign instruction.
In some embodiments, the air penetrability of described layered product is 5 cubic feet/min or larger.The air breathability of the q.s of layered product required when this provides actual use bed clothes object, described bed clothes object is encapsulated completely by barrier layer laminate.The high air penetrability of barrier layer laminate allows in bed clothes object such as pillow, to carry out suitable airflow management in the following way: the bed clothes object generation over-pressurization and the inflatable that prevent encapsulating, and minimizes localized heat line gathering in bed clothes.Although the layered product with the air penetrability being less than 5 cubic feet/min can be considered to have the block of improvement, if but layered product does not have enough air penetrabilities, then bed clothes object will be pressurized during use, such as because the head of people is placed on the supercharging that pillow causes.This forces the air in pillow to be extruded by zip and/or sewn seams, instead of is extruded by barrier material; This is not desired, because zip and sewn seams are tending towards providing the filter capacity more very different than layered product.
35 times washing after, measured by ASTM F2638-07, when use 1 micron particles challenge and 1.6 liters/min of air-flows are tested at the most time, the filter efficiency of this layered product is 95% or larger.It is believed that the filter efficiency of this level provides enough protection and barrier properties, because some anaphylactogens can be as small as 1 micron of (i.e. scurf of cat, become the larger anaphylactogen etc. of fragment), thus anaphylactogen fabric should become a kind of effective filter medium, and it is corresponding to the challenge level of the anaphylactogen desired by the major part being derived from bed clothes.Flow level can affect the filter efficiency of anaphylactogen fabric/sub-assembly to a certain extent; and the air-flow of 1.6 liters/min represent a little more than people sleep time normal activity during usual experienced air displacement, be therefore a kind of stricter layered product performance test.
This layered product comprises the high density woven fabric layer with 160 to 400 counts of yarn.As used herein, " count of yarn " is measured for fabric fineness, and is the total number of vertical yarn in one square inch of fabric and horizontal yarns.It is believed that the Woven fabric with the count of yarn being less than 160 can not have enough durability, and the Woven fabric with the count of yarn being greater than 400 can provide aesthetically too stiff fabric and provide extremely expensive.In some preferred embodiments, described woven fabric layer has the count of yarn of 180 to 350, and in some the most preferred embodiment, the count of yarn of described woven fabric layer is 200 to 270.
In some typical embodiments, described woven fabric layer can have plain weave; In some other embodiments, described Woven fabric can have twill weave.In some the most preferred embodiment, described woven fabric layer is cotton or polyester-cotton fabric.So-called polyester-cotton blend, refer to the cotton of any ratio and the blend of polyester fiber, but the blend of the polyester of the cotton of 35 to 65% weight and 65 to 35% weight is preferred.In some embodiments, described woven fabric layer can for the Woven fabric be made up of the mixture of polyester fiber, nylon fiber or these fibers.In some embodiments, desirably high density polyester terephthalate weaves front fabric; The example of the type fabric comprises Burlington 0529-15 fabric, and it is a kind of plain weave 100% PETG (PET) micro-fibre fabric, has 2.75oz/yd
2basic weight and the stretching (warp thread and weft yarn) of 8 to 12% and the count of yarn (121 × 91 warp thread × picks per inch) of 212; And Asiatic Fiber Corporation Aclean R04 fabric, it is 2/1 twill weave 98 to 100%PET fabric carbon filament yarn, has 123g/m
2basic weight and 166 the count of yarn (96 × 70 warps × picks per inch).Burlington is positioned at Greensboro, NC, and Asiatic Fiber Corporation is positioned at Taipei, Taiwan.
Described sensitinogen-resistant layer has the basic weight of 6 to 10 grams/m, and in some embodiments, described basic weight is 6 to 8 grams/m (gsm).It is believed that the layering of the basic weight meeting promoting layer laminate being less than 6gsm, and it is believed that the enough mechanical integrities not having and can stand at least 35 washings.Do not think that the basic weight being greater than 10gsm can contribute to improving SNR substantially, but additional unexpected cost can not be increased.
Sensitinogen-resistant layer is by fibrous non-woven material, and described fiber has the average diameter of 100 to 450 nanometers.As used herein, so-called average diameter, refers to the equal fibre diameter of the number of each fiber in non-woven material.In some embodiments, described non-woven material comprises by the fiber being selected from following polymer and making: nylon, polyester, polypropylene, polyurethane, polyolefin and their mixture.In some preferred embodiments, described non-woven material comprises the fiber be made up of nylon.
In some embodiments, described sensitinogen-resistant layer has 3.5m
3/ min/m
2or larger Fu Leize air penetrability.In some preferred embodiments, described air penetrability is 5m
3/ min/m
2or larger, and in some the most preferred embodiment, described air penetrability is 8m
3/ min/m
2or it is larger.High gas flow through layers of nanofibers of the present invention causes sensitinogen-resistant fabric to provide great comfortableness due to their gas permeability to user, still keeps low-level anaphylactogen to permeate simultaneously.
In some embodiments, the fleece containing polymer nanofiber as sensitinogen-resistant layer is produced by the technology of such as electrostatic spinning or by electroblowing and so on.Electrostatic spinning and electro-blowing technology all can be applicable to diversified polymer, as long as namely described polymer can be dissolved in certain solvent under environment temperature and pressure condition substantially at relatively gentle spinning condition.Polymer solution is prepared by selecting the suitable solvent being used for polymer.Suitable solvent can comprise the material of such as alcohol, formic acid, dimethylacetylamide and dimethyl formamide and so on.Polymer solution can comprise other additives, comprises any resin compatible with related polymer, plasticizer, ultra-violet stabilizer, crosslinking agent, curing agent, reaction initiator, colouring agent such as dyestuff and pigment etc.If expect and/or need, heating can be utilized to help dissolve polymer or additive.
In electrostatic spinning, between polymer solution and target surface, apply high voltage to produce nanofiber and non-woven mat.Although may there is a variety of arrangement, charge accumulation is until electric charge overcomes the surface tension of droplet on small drops in fact, thus causes droplet to extend and forms fibrous material, and described fibrous material is by towards target surface " spinning ".Representative electrostatic spinning method is disclosed in such as United States Patent (USP) 4,127,706 and 6,673, in 136.
In by electroblowing, the solution of polymer and solvent are fed in the spinning-nozzle in spinning head, on described spinning head, apply high voltage, and polymer solution is discharged by described spinning head.Meanwhile, the Compressed Gas (being generally air) of optional heating is discharged from air nozzle, and described air nozzle is arranged on side or the periphery of spinning-nozzle.Described air is generally guided downward as blowing gas stream, and described blowing gas stream is encapsulated and advanced the polymer solution that is derived from spinning-nozzle and contribute to forming fleece.In general, use and form multiple fibroreticulate multiple spinning head, described fleece is collected as mat material in target electrical ground, and described target is electrical ground generally the porous collection belt above vacuum chamber.A kind of representative by electroblowing is disclosed in international publication WO2003/080905 (United States serial 10/822,325).The method can make fleece have 1g/m
2higher basic weight.
This layered product also comprises tricot knit fabric layer, its for functional anaphylactogen layer provide soft, crease-resistant and the protection of flexibility in order to avoid there is abrasion in it, compensate simultaneously Woven fabric at every turn coherent washing time the contraction that occurs.The use of knit goods helps the local stress in eliminating layer laminate during washing and after washing, described local stress can cause separation between each layer or structure wrinkle.So-called tricot knitted fabric, refers to the warp knit goods or weft yarn needle fabric that are made into plane jersey structure or mesh; But in a preferred embodiment, described knitted fabric is the knitting tricot of warp.
In some preferred embodiments, described tricot knitted fabric can stretch 10% or more at least one direction, and described amount of tension is measured by ASTM D2594 " Standard Test Methodfor Stretch Properties of Knitted Fabrics Having Low Power ".In some preferred embodiments, described knitted fabric can stretch 15 to 25% at least one direction.This allows this layer of simulation more firmly to weave front fabric is cotton or that polyester-cotton fabric is during washing contraction and/or thermal deformation, and helps prevent layered product layering.It is believed that the stress that the tight knitted fabric with less percentage elongation applies layered product is excessive, thus cause interior poly-broken ring occurs between each layer.In some embodiments, knitted fabric be constructed such that fabric have little opening that average-size is about 1mm diameter with during washing and normal dress for sensitinogen-resistant layer provides enough mechanical protections, still allow air freely to flow through knitted fabric simultaneously.These openings are formed preferably by the shaping tight ness rating of the longitudinal coil in knitting warp knitted fabric with transverse coil and parallel coil in a row.In weft yarn needle fabric, the yarn of general single needle snare its oneself, thus opening is preferably formed by the size of coil and tight ness rating.
In some preferred embodiments, described tricot knit fabric layer comprises polyester terephthalate fiber or nylon fiber.In some embodiments, described tricot knit fabric layer can be knit goods, and described knit goods is made up of the mixture of polyester fiber, nylon fiber or these fibers.
Woven fabric layer and tricot knit fabric layer at least one adhesive are attached to sensitinogen-resistant layer, and described adhesive is distributed in the zone of dispersion on the side of sensitinogen-resistant layer.Described at least one adhesive also penetrates into be weaved with in each surface in knitted fabric layer, but does not extend through those layers.In some embodiments, the adhesive for weaving layer is different from the adhesive for tricot knitted layer.In some preferred embodiments, identical adhesive is used to two layers.
In some embodiments, adhesive has the peak viscosity of 8000 milli handkerchief seconds when being administered on sensitinogen-resistant layer or fabric or knitted layer, and has in some preferred embodiments and be less than 5, the viscosity of 000 milli handkerchief second.In some embodiments, adhesive has the percentage elongation of after solidification 500 to 700%; After solidification 30, the Young's modulus of 000 to 40,000kPa; With the hot strength being less than 15,000kPa after solidification.
Suitable adhesive comprise based on solvent adhesive, moisture or based on water adhesive and be designed to lamination can the adhesive based on hot melt of laundering of textile fabrics, the reaction heat fusibleness type of strongly preferably moisture-cured.Exemplary adhesive comprises polyurethane Tacktile
tMhL-9639 reaction heat hot melt adhesive, derives from H.B.Fuller Company, St Paul MN.
The present invention also relates to the method for the preparation of the layered product being used as sensitinogen-resistant structure.In one embodiment, described method relates to carrys out applied adhesives with two steps, and in another embodiment, carrys out applied adhesives with a step.For the preparation of the method for two step of applying of the layered product as sensitinogen-resistant structure, it comprises the following steps:
A) the sensitinogen-resistant layer with the first side and the second opposing side and the first tissue layer for Woven fabric or knit goods are provided;
B) be applied in the zone of dispersion on the first side of sensitinogen-resistant layer by least one first adhesive, described at least one first adhesive is selected such that it infiltrates sensitinogen-resistant layer at least 70% of sensitinogen-resistant layer thickness from a side to another side;
C) the first tissue layer is applied on the first side of sensitinogen-resistant layer;
D) the first tissue layer and sensitinogen-resistant layer are consolidated into pre-laminate, the adhesive of wherein said at least one first zone of dispersion to extend in a surface of the first tissue layer but through tissue layer from a surface to another surface;
E) provide steps d) pre-laminate and the second tissue layer, if the first tissue layer is Woven fabric, then described second tissue layer is knit goods, if or the first fabric be knit goods, then described second tissue layer is Woven fabric;
F) be applied in the zone of dispersion on the second opposing side of sensitinogen-resistant layer by least one second adhesive identical or different with described at least one first adhesive, described at least one second adhesive is selected such that it infiltrates sensitinogen-resistant layer at least 70% of sensitinogen-resistant layer thickness from a side to another side;
G) the second tissue layer is applied on the second opposing side of sensitinogen-resistant layer; And
H) the second tissue layer and pre-laminate are consolidated into layered product, wherein the adhesive of at least one second zone of dispersion to extend in a surface of the second tissue layer but through tissue layer from a surface to another surface.
An embodiment of the method for this two step of applying is illustrated in Fig. 5 A and 5B.See Fig. 5 A, sensitinogen-resistant layer 12 is supplied to the roll gap that adhesive is used roller 32 and padded between roller 33.Adhesive is used roller 32 and is administered in zone of dispersion on a side of sensitinogen-resistant layer by least one adhesive being derived from adhesive reservoir 34.Then be routed to application of on the side of adhesive of sensitinogen-resistant by weaving front tissue layer 11, and carry out consolidation to make pre-laminate 40 by the roll gap of these layers between a pair roller bearing 35.
In the method, adhesive preferably infiltrates at least 70% of sensitinogen-resistant layer, but the adhesive of significant quantity is not always through the thickness of this layer.Equally, adhesive penetrates into be weaved in the tissue layer of front, but not always through the thickness of this layer.This reduces the amount of the adhesive that may be adhered on roller bearing and other surfaces in the process.
See Fig. 5 B, pre-laminate 40 is supplied to adhesive use roller 42 and pad roller 43 between roll gap, wherein pre-laminate weave front tissue layer contacts side surfaces pad roller 43 and sensitinogen-resistant layer contact use roller 42.If needed, using roller and pad roller can be used identical with first step.Adhesive is used roller 42 and is administered on the remaining side of not using of sensitinogen-resistant layer by least one adhesive being derived from adhesive reservoir 34 in zone of dispersion.Then knitting for tricot rear fabric layer 13 is routed to application of on the side of adhesive of sensitinogen-resistant, and carries out consolidation to prepare layered product 50 by the roll gap of these layers between a pair roller bearing 45.
As the situation of pre-laminate, adhesive preferably infiltrates at least 70% of sensitinogen-resistant layer, but the adhesive of significant quantity is not always through the thickness of this layer.Similarly, adhesive penetrates in the knitting rear fabric layer of tricot, but not always through the thickness of this layer.
Alternatively, a step applied adhesives can be carried out.For the preparation of a step of applying method of the layered product as sensitinogen-resistant structure, it comprises the following steps:
A) woven fabric layer, sensitinogen-resistant layer and knitted fabric layer are provided;
B) be applied in by least one adhesive in the zone of dispersion on the first side of sensitinogen-resistant layer and the second opposing side, described adhesive is selected such that it infiltrates sensitinogen-resistant layer at least 70% of sensitinogen-resistant layer thickness from a side to another side;
C) knitted fabric layer is applied on the first side of sensitinogen-resistant layer, and woven fabric layer is applied on the second opposing side of sensitinogen-resistant layer; And
D) woven fabric layer, sensitinogen-resistant layer and knitted fabric layer are consolidated into layered product, wherein the adhesive of zone of dispersion to extend in a surface of woven fabric layer and to extend in a surface of knitted fabric layer but through any one tissue layer from a surface to another surface.An embodiment of a step of applying method is illustrated in Fig. 6.Such as, provide sensitinogen-resistant material, then provide it to adhesive application device 61 from sensitinogen-resistant layer material roller 60, at least one adhesive is administered to described two sides of sensitinogen-resistant layer by described application device in zone of dispersion.Then front tissue layer 63 will be weaved and the knitting rear fabric layer 62 of tricot is combined on any one side of sensitinogen-resistant, and carry out consolidation to prepare layered product 65 by the roll gap of these layers between a pair roller bearing 64, if needed, described layered product can be wound into roller 66.
In the method, adhesive preferably infiltrates at least 70% of sensitinogen-resistant layer, but does not require adhesive always through the thickness of this layer.But, wish that adhesive penetrates in weaving layer and knitted layer, but always two-layer through that in any one.
A described step or two steps adhesive application process in, in some preferred embodiments, described at least one adhesive is with the hot-melt adhesive that molten condition is used under 75 to 125 degrees Celsius.In some preferred embodiments, adhesive is hot melt polyurethane.In any one method, in some embodiments, the amount preferably fewer than the amount as many as of the adhesive be administered on the knit goods side of sensitinogen-resistant layer 1 gram/m of the adhesive on the Woven fabric side of sensitinogen-resistant layer is administered to.
Described layered product is used for the application of a series of bed clothes and indoor decoration fabric, includes but not limited to pillow and mattress jacking, pillow and mattress guard shield, pillowcase and bedcover, coverlet, mattress pad, quilt and eiderdown quilt.
method of testing
Filter efficiency is tested.The method that use is specified by ASTM F2638-07 determines strainability during 1 micron of challenge, and described method is standard method of test when using aerosol filtration, for measuring the performance of the porous wrapper as substitute microorganism block piece.
Fibre diameter is measured as follows.5, under 000 x magnification, take ten ESEM (SEM) images of each layers of nanofibers sample.Measure the diameter of ten one (11) individual clear and legible nanofibers by photo to go forward side by side line item.Do not comprise flaw (that is, the infall of the projection of nanofiber, polymer drops, nanofiber).Calculate average (intermediate value) fibre diameter of each sample.
Air penetrability.Before and after minimum 35 washing/dryings circulation, determine the Fu Leize air penetrability of layered product to check that any structure relevant to sample washing resistance changes.Fu Leize air penetrability is measuring of porous material air penetrability and with unit ft
3/ min/ft
2record.Under the differential water pressures of 0.5 inch (12.7mm), it measures the airflow volume by material.Aperture is arranged in vacuum system so that air is restricted to measurable degree by the flow of sample.Port size depends on the porosity of material.Fu Leize air penetrability is with unit ft
3/ min/ft
2use the dual pressure meter with calivarator-orifice of Sherman W.Frazier Co. to measure, and convert thereof into unit m
3/ min/m
2.In several positions with normal business FX3300 air penetrability tester (Fu Leize) under 125Pa at 38cm
2area on measure 5 all washings with unwashed layered product.
Washing resistance.All layered products wash and drying in typical GE consumer's air dryer in typical GE roof-mounted consumer rinsing maching.Five laminate samples are ready for use on washing resistance test.Washing resistance test is made up of 35 wash cycle, wherein each wash cycle includes: heat/warm gear selecting washing (about 60 minutes), wherein hot water temperature is set in 140F, then dried by the air being low to moderate middle-grade temperature of 40 minutes, all sample standard deviations are with the stock detergent washing of typical commercially available acquisition.Inspect each washed sample and there is any layering or veining sign (that is, implying the surface folding of local delamination) to check whether.
Measure basic weight by ASTM D-3776, result is with g/m
2record.
Embodiment
Following all layered products are all prepared by this conventional method.By nylon-6,6 sensitinogen-resistant layer material rollers being placed on the unwinding device of adhesive phase press as shown in Figure 5A, and the polyurethane binder with catalyst is administered to a side of sensitinogen-resistant layer by patterning application roll.Be administered on pattern of adhesive sensitinogen-resistant layer by coextensive for front fabric, then sensitinogen-resistant layer and front fabric carried out rolling to form pre-laminate in the roll gap between two stacks.Then pre-laminate is wound up on core, then remain in the warm temperature controlled compartment under the high temperature between 25 and 50 degrees Celsius solidify 24 hours.This makes polyurethane binder and catalyst be cross-linked to prepare stable anti-clinkering structure.
As shown in Figure 5 B, then pre-laminate roller is placed on the unwinding device of adhesive phase press, the front fabric side of pre-laminate is positioned on bottom.Another side that adhesive to be administered to sensitinogen-resistant layer by roller is used with patterning.Then be applied on pattern of adhesive sensitinogen-resistant layer by coextensive for rear fabric, then pre-laminate and rear fabric carried out in the roll gap between two stacks rolling to form layered product sensitinogen-resistant structure.Then pre-laminate is wound up on core, then solidifies 24 hours in greenhouse as previously mentioned.
All layered products all employ by nylon 6, the sensitinogen-resistant layer of 6 nanofiber compositions, and described nanofiber uses the method disclosed in international publication WO2003/080905 to prepare.In the examples below, numericitem (such as, 1-1,1-2) shows embodiment of the present invention, and alphabetical project (such as 1-A, 1-B) shows and compares.The amount of the adhesive reported is nominal amount, has the 1g/m that adds deduct of estimation
2the standard deviation of the amount of application of/side.
embodiment 1
After 35 washings, this example show the structural intergrity of layered product.Prepared the various sensitinogen-resistant layered products with sensitinogen-resistant fabric, described sensitinogen-resistant fabric have about 10 grams/m basic weight, 80 to 90 liters/m
2the Fu Leize air penetrability of/sec and the mean flow pore size of 1.8 to 3.5 microns.The equal fibre diameter of number of the nanofiber in described fabric is 400nm.Result is shown in Table 1." qualified " evaluation of " structural intergrity after 35 washings " is referred to there is not signs of delamination.On the contrary, these layered products of " defective " evaluation instruction have local detachment, fold or adhesive seep through.All adhesives are polyurethane series, and some are reaction moisture-cured hot melt sexual type, and some are solvent-borne type.
As shown in Table, the layered product prepared by the combination of the tricot knit goods on another side of the woven cotton on a side of sensitinogen-resistant fabric and barrier fabric have passed structural intergrity and tests, and weave/weave, weave/non-woven combination is like this by described test.
table 1
embodiment 2
This example show basic weight and adhesive is suitably penetrated into impact in sensitinogen-resistant layer.Sensitinogen-resistant layered product is prepared to 205 woven cotton front fabrics and 35 grams/m of PET tricot knit goodss, but has the sensitinogen-resistant fabric of change basic weight, to measure the adhesive seep through performance of those barrier fabrics.As in embodiment 1, the equal fibre diameter of number of the nanofiber in all sensitinogen-resistant fabrics is 400nm.
The results are shown in Table 2." qualified " of " adhesive seep through " evaluation is referred to there is not or only exist the seep through of acceptable adhesive through sensitinogen-resistant fabric, and front fabric and rear fabric can by sufficiently laminations.On the contrary, " defective " evaluation instruction sensitinogen-resistant fabric there is unacceptable adhesive seep through and/or front fabric and rear fabric can not by sufficiently lamination.
Time in for layered product, the sensitinogen-resistant fabric with 6 to 10 grams/m of basic weights demonstrates acceptable adhesive seep through performance, and the sensitinogen-resistant fabric of lighter in weight does not demonstrate acceptable adhesive seep through performance.
table 2
embodiment 3
After 35 washings, this example show knitted structure retains situation impact on filter efficiency.Sensitinogen-resistant layered product is prepared to the sensitinogen-resistant fabric with 205cc woven cotton front fabric and 8 grams/m of basic weights, but has the knit goods of change type, to measure enough layered product scourabilities.As in embodiment 1, the equal fibre diameter of number of the nanofiber in all sensitinogen-resistant fabrics is 400nm.
Result is shown in Table 3.After 35 washings, measured by ASTM F2638-07, under 1 micron layer laminate, only tricot knitted fabric maintains acceptable filter efficiency.
After 35 washings, only remain enough filter efficiencies with the layered product that Trico is prepared through volume formula knitted fabric.
table 3
embodiment 4
This embodiment shows, high density can be used to weave polyester terephthalate front fabric and carry out alternative woven cotton front fabric.Project 4-1 employs Burlington 0529-15 fabric, and it is a kind of plain weave 100%PET micro-fibre fabric, has 2.75oz/yd
2basic weight and the stretching (warp thread and weft yarn) of 8 to 12% and the count of yarn (121 × 91 warp thread × picks per inch) of 212.Project 4-2 employs Asiatic Fiber Corporation Aclean R04 fabric, and it is a kind of 2/1 twill weave 100%PET fabric, has 123g/m
2basic weight and 166 the count of yarn (96 × 70 warps × picks per inch).The equal fibre diameter of number of the nanofiber in all sensitinogen-resistant fabrics is 300 to 400nm.
Result is shown in Table 4.After 35 washings, measured by ASTM F2638-07, all layered products all maintain acceptable filter efficiency and excellent durability under 1 micron layer laminate, and without signs of delamination.
Claims (16)
1. be used as the layered product of sensitinogen-resistant structure, it comprises successively:
A) woven fabric layer, it has the count of yarn of 180 to 400;
B) non-woven sensitinogen-resistant layer, it has the basic weight of 6 to 10 grams/m and by fibrous, described fiber has the average diameter of 100 to 450 nanometers; With
C) tricot knit fabric layer;
Wherein said woven fabric layer is attached to described sensitinogen-resistant layer by the first adhesive, in the zone of dispersion of described first adhesive distribution on the first side of described sensitinogen-resistant layer, the adhesive of described zone of dispersion penetrates at least 70% of described sensitinogen-resistant layer thickness, and described first adhesive also penetrates in a surface of described woven fabric layer, but do not extend through described woven fabric layer from a surface to another surface; And
Wherein said tricot knit fabric layer is attached to described sensitinogen-resistant layer by the second adhesive, in the zone of dispersion of described second adhesive distribution on the second side of described sensitinogen-resistant layer, the adhesive of described zone of dispersion penetrates at least 70% of described sensitinogen-resistant layer thickness, described second adhesive also penetrates in a surface of described tricot knit fabric layer, but does not extend through described knitted fabric layer from a surface to another surface; And
Wherein said layered product has total basic weight of 50 to 300 grams/m, and after 35 washings, measured by ASTM F2638-07, for 1 micron particles challenge of 1.6 liters/min of air-flows at the most, described layered product has the filter efficiency of 95% or larger.
2. the layered product of claim 1, wherein said first adhesive is identical with the second adhesive.
3. the layered product of claim 1, the peel strength of wherein said layered product is 0.5 pounds per inch or larger.
4. the layered product of claim 1, wherein said non-woven sensitinogen-resistant layer comprises by the fibrous material being selected from following polymer and making: nylon, polyester, polyurethane, polyolefin and their mixture.
5. the layered product of claim 4, wherein said polymer is nylon 6,6.
6. the layered product of claim 1, the air penetrability of wherein said layered product is 5 cubic feet/min or larger.
7. the layered product of claim 1, wherein said woven fabric layer is bafta or polyester-cotton fabric.
8. the layered product of claim 1, wherein said woven fabric layer comprises and is selected from following fiber: polyester fiber, nylon fiber or their mixture.
9. the layered product of claim 1, wherein said knitted fabric layer comprises and is selected from following fiber: polyester fiber, nylon fiber or their mixture.
10. the layered product of claim 1, wherein at least described first adhesive or the second adhesive infiltrate described sensitinogen-resistant layer, and substantially continuously across described sensitinogen-resistant layer from a side to another side.
The layered product of 11. claims 4, wherein said polyolefin is polypropylene.
12. for the preparation of the method for layered product being used as sensitinogen-resistant structure, and it comprises the following steps:
A) the sensitinogen-resistant layer with the first side and the second opposing side be provided and be the woven fabric layer of the count of yarn with 180 to 400 or the first tissue layer of tricot knit fabric layer, wherein said sensitinogen-resistant layer for have 6 to 10 grams/m basic weight non-woven sensitinogen-resistant layer and by having the fibrous of 100 to 450 nm average diameter;
B) be administered to by least one first adhesive in the zone of dispersion on the first side of described sensitinogen-resistant layer, described at least one first adhesive is selected such that it infiltrates described sensitinogen-resistant layer at least 70% of described sensitinogen-resistant layer thickness from a side to another side;
C) described first tissue layer is applied on the first side of described sensitinogen-resistant layer;
D) described first tissue layer and described sensitinogen-resistant layer are consolidated into pre-laminate, at least one first adhesive of wherein said zone of dispersion to extend in a surface of described first tissue layer but through described tissue layer from a surface to another surface;
E) provide steps d) pre-laminate and the second tissue layer, if described first tissue layer is woven fabric layer, then described second tissue layer is tricot knit fabric layer, if or described first fabric is tricot knit fabric layer, then described second tissue layer is the Woven fabric of the count of yarn with 180 to 400;
F) be applied in the zone of dispersion on the second opposing side of described sensitinogen-resistant layer by least one second adhesive identical or different with described at least one first adhesive, described at least one second adhesive is selected such that it infiltrates described sensitinogen-resistant layer at least 70% of described sensitinogen-resistant layer thickness from a side to another side;
G) described second tissue layer is applied on the second opposing side of described sensitinogen-resistant layer; And
H) described second tissue layer and described pre-laminate are consolidated into layered product, wherein the described zone of dispersion of at least one second adhesive to extend in a surface of described second tissue layer but through described tissue layer from a surface to another surface;
Wherein said layered product has total basic weight of 50 to 300 grams/m, and after 35 washings, measured by ASTM F2638-07, for 1 micron particles challenge of 1.6 liters/min of air-flows at the most, described layered product has the filter efficiency of 95% or larger.
The method of 13. claims 12, wherein said adhesive is with the hot-melt adhesive that molten condition is used under 75 to 125 degrees Celsius.
The method of 14. claims 12, wherein said adhesive is polyurethane.
15. for the preparation of the method for layered product being used as sensitinogen-resistant structure, and it comprises the following steps:
A) woven fabric layer of the count of yarn with 180 to 400, sensitinogen-resistant layer and tricot knit fabric layer are provided, wherein said sensitinogen-resistant layer for have 6 to 10 grams/m of basic weights non-woven sensitinogen-resistant layer and by average diameter fibrous with 100 to 450 nanometers;
B) be applied in by least one adhesive in the zone of dispersion on the first side of described sensitinogen-resistant layer and the second opposing side, described adhesive is selected such that it infiltrates described sensitinogen-resistant layer at least 70% of described sensitinogen-resistant layer thickness from a side to another side;
C) described knitted fabric layer is applied on the first side of described sensitinogen-resistant layer, and described woven fabric layer is applied on the second opposing side of described sensitinogen-resistant layer; And
D) described woven fabric layer, described sensitinogen-resistant layer and described knitted fabric layer are consolidated into layered product, the adhesive of wherein said zone of dispersion to extend in a surface of described woven fabric layer and to extend in a surface of described knitted fabric layer but through any one tissue layer from a surface to another surface;
Wherein said layered product has total basic weight of 50 to 300 grams/m, and after 35 washings, measured by ASTM F2638-07, for 1 micron particles challenge of 1.6 liters/min of air-flows at the most, described layered product has the filter efficiency of 95% or larger.
The method of 16. claims 15, wherein said adhesive is polyurethane.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/538,440 US20110033686A1 (en) | 2009-08-10 | 2009-08-10 | Durable high performance adhesive-bonded allergen barrier laminates and process for making same |
| US12/538440 | 2009-08-10 | ||
| PCT/US2010/044941 WO2011019674A1 (en) | 2009-08-10 | 2010-08-10 | Durable high performance adhesive-bonded allergen barrier laminates and process for making same |
Publications (2)
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| CN102574356A CN102574356A (en) | 2012-07-11 |
| CN102574356B true CN102574356B (en) | 2015-04-22 |
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| CN201080045401.9A Active CN102574356B (en) | 2009-08-10 | 2010-08-10 | Durable high performance adhesive-bonded allergen barrier laminates and process for making same |
Country Status (8)
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| US (1) | US20110033686A1 (en) |
| EP (1) | EP2464511B1 (en) |
| JP (1) | JP2013501656A (en) |
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| CN (1) | CN102574356B (en) |
| BR (1) | BR112012002739A2 (en) |
| IN (1) | IN2012DN00735A (en) |
| WO (1) | WO2011019674A1 (en) |
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| US20130309929A1 (en) * | 2012-05-16 | 2013-11-21 | The North Face Apparel Corp. | Multilayer Fabric Structures |
| US10835052B2 (en) * | 2016-06-13 | 2020-11-17 | WestPoint Home LLC | Lie-flat mattress pad |
| CN107772949A (en) * | 2016-08-26 | 2018-03-09 | 3M新设资产公司 | Stop cloth material, its preparation method and the bedding wrap comprising the cloth material of anaphylactogen |
| USD838125S1 (en) * | 2017-02-15 | 2019-01-15 | Kevin Kreutzer | Sleeping bag cover for an air mattress |
| JP2019006384A (en) * | 2017-06-26 | 2019-01-17 | 本田技研工業株式会社 | Washable seat cover |
| US20200022430A1 (en) * | 2018-07-18 | 2020-01-23 | Inprotex Co., Ltd. | Phototherapy Anti-Smog Cloth Structure |
| CN110014698A (en) * | 2019-05-08 | 2019-07-16 | 梦百合家居科技股份有限公司 | A kind of inflaming retarding fabric combination process and the composite flame-proof external casing of mattress using the production of this kind of method |
| IT202000006118A1 (en) * | 2020-03-23 | 2021-09-23 | Alessandro Bergamini | FLEXIBLE FABRIC FOR CLOTHING OR LEATHER GOODS |
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|---|---|---|---|---|
| CN1761562A (en) * | 2003-03-21 | 2006-04-19 | 纳幕尔杜邦公司 | Multi-layer adhesive-bonded nonwoven sheet and its production method |
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| US3616150A (en) * | 1967-12-26 | 1971-10-26 | Deering Milliken Res Corp | Laminated article |
| JPS5136387B2 (en) * | 1974-07-16 | 1976-10-08 | ||
| GB1522605A (en) * | 1974-09-26 | 1978-08-23 | Ici Ltd | Preparation of fibrous sheet product |
| JP2758427B2 (en) * | 1989-03-10 | 1998-05-28 | 旭化成工業株式会社 | Mite control sheet |
| JPH07246144A (en) * | 1994-03-09 | 1995-09-26 | Unitika Ltd | Antiallergenic bedding cover |
| JP3625548B2 (en) * | 1995-11-15 | 2005-03-02 | 旭化成せんい株式会社 | Composite structure fabric for mask |
| US6660376B1 (en) * | 2000-06-06 | 2003-12-09 | H. B. Fuller Licensing & Financing Inc. | Method of bonding permeable substrates with hot melt moisture cure adhesive having low viscosity and high green strength |
| US6673136B2 (en) * | 2000-09-05 | 2004-01-06 | Donaldson Company, Inc. | Air filtration arrangements having fluted media constructions and methods |
| KR100549140B1 (en) | 2002-03-26 | 2006-02-03 | 이 아이 듀폰 디 네모아 앤드 캄파니 | A electro-blown spinning process of preparing for the nanofiber web |
| US20050233662A1 (en) * | 2004-04-16 | 2005-10-20 | Kimbrell William C | Self-adhesive textile surface covering |
| US20080120783A1 (en) * | 2006-08-17 | 2008-05-29 | Warren Francis Knoff | Nanofiber allergen barrier fabric |
| US8318617B2 (en) * | 2007-11-09 | 2012-11-27 | E I Du Pont De Nemours And Company | Contamination control garments |
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2009
- 2009-08-10 US US12/538,440 patent/US20110033686A1/en not_active Abandoned
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- 2010-08-10 BR BR112012002739A patent/BR112012002739A2/en not_active IP Right Cessation
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- 2010-08-10 WO PCT/US2010/044941 patent/WO2011019674A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761562A (en) * | 2003-03-21 | 2006-04-19 | 纳幕尔杜邦公司 | Multi-layer adhesive-bonded nonwoven sheet and its production method |
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|---|---|
| EP2464511B1 (en) | 2020-12-16 |
| IN2012DN00735A (en) | 2015-06-19 |
| JP2013501656A (en) | 2013-01-17 |
| CN102574356A (en) | 2012-07-11 |
| US20110033686A1 (en) | 2011-02-10 |
| BR112012002739A2 (en) | 2016-11-08 |
| KR20120045048A (en) | 2012-05-08 |
| WO2011019674A1 (en) | 2011-02-17 |
| EP2464511A1 (en) | 2012-06-20 |
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